Most of the ham stuff references Amidon and Fair-Rite ferrite mix numbers
A different company, Laird, sells three main mixes of ferrite
toroids/beads/snap-ons: "LF", "28" and "HF". Graphs in
http://www.lairdtech.com/WorkArea/linkit.aspx?LinkIdentifier=id&ItemID=3363
Laird mix 28 might be comparable to Fair-Rite 43, and Laird mix LF might be
good for 160M balun chokes. But maybe I'm comparing apples and oranges.
Laird cores are very well stocked at Digi-Key and prices are excellent in low
quantities. I've been using them in switch-mode power supplies but not in
actual "RF" applications so far.
Thoughts on Laird mix LF? Anyone tried it for choke baluns on 160M?
Tim N3QE
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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